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PHY 102 Test Compilation PHY 102 20 Objective Question
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Question

Which of the following is/are correct for parallel current-carrying conductors? I. The force between the conductors is inversely proportional to the distance between them II. The force between the conductors is directly proportional to the current flowing in them III. If current flows in the same direction in the conductors, the force between them is attractive
Options
A I and II
B I, II & III
Correct Answer
C II & III
D : this confirms F is proportional to 1/d (I is true) and to the currents (II is true). Also, currents in the SAME direction attract (III is true). All three are correct.
Correct Answer

Option B is the correct answer.

Detailed Explanation

F/L = (mu0 I1 I2)/(2pid): this confirms F is proportional to 1/d (I is true) and to the currents (II is true). Also, currents in the SAME direction attract (III is true). All three are correct.

Hint

F/L = (mu0 I1 I2)/(2*pi*d): this confirms F is proportional to 1/d (I is true) and to the currents (II is true).

Question Info

Course: PHY 102
Topic: Test Compilation PHY 102 20
Type: Objective
Difficulty: Not specified
Question 1270 of 1819
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